1. Official notices
Save HMRC and Companies House letters, online account screenshots, penalty notices and the exact filing period. Do not rely on memory when a date is close.
When a deadline is close, the safest first move is not panic-filing. It is to work out what is due, what records exist, what is missing and whether there is enough time for a careful accountant review.
A deadline can be Companies House, Corporation Tax payment, CT600 filing, VAT, payroll, CIS, Self Assessment or a late-response date from HMRC. Each one needs a slightly different order of work.
Save HMRC and Companies House letters, online account screenshots, penalty notices and the exact filing period. Do not rely on memory when a date is close.
Export bank statements, bookkeeping reports, unreconciled transaction lists and access details for the accounting software. If the software looks unreliable, use a cleanup route first.
Collect invoices, receipt folders, mileage notes, loan or finance statements, supplier statements and explanations for any large or unusual payments.
Prepare VAT return history, payroll summaries, pension prompts, CIS deduction statements and subcontractor payment records where relevant.
List salary, dividends, drawings, personal spending through the business, repayments and any director loan account concerns that need accountant review.
Find the previous accounts, Corporation Tax return, Self Assessment return and any working papers you can access. The new filing needs to connect to what was filed before.
The closer the deadline, the more important it is to be honest about record quality. A careful accountant may be able to prioritise the highest-risk items, but cannot safely rely on incomplete or contradictory records without review.
Connect year-end accounts, CT600 evidence, director payments and tax cashflow before filing.
Organise income, dividends, expenses, payments on account and personal tax records before January or July cashflow surprises.
Review duplicates, unreconciled items, VAT codes, receipt gaps and source evidence before relying on the numbers.
Give Gardian the business type, filing date, issue and record status so the first reply can be practical.
Send the basics so Gardian can reply with the right next step. Use the Fit Check instead if you are unsure what kind of help you need.